Guitar mounting bracket



FIG. 1 is a top plan view of a guitar mounting bracket showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof, the right side being a mirror image of that shown; and

FIG. 6 is a reduced perspective view thereof.

The broken-line showing of the guitar head and neck portions are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a guitar mounting bracket, as shown and described. 